Kristin Davis recently followed in the footsteps of her most famous character, Sex and the City's Charlotte York, and adopted a baby daughter! But, as she toldAnderson Cooperin an interview scheduled to air today, the whole adoption process was a lot different than she was expecting.

"[Adopting a baby] is terrifying," Kristin said, "partly because with adoption youalways know there’s the chance that it won’t work. So you’re on pins andneedles." And even after you have the baby, it's still not a sure thing. "They tell you that when [your child] first comes, youshould think of it as babysitting in case the birth mom changes her mind. Every state is different, but in [California] it’s 48hours. So you’re trying to think that you’re a babysitter but that’s kind ofimpossible!"

The 47-year-old actress said she'd always kept the idea of adoption in the back of her head as a possibility, but once she started the process it was a lot different than she expected. "It’s quite confusing," she said. "There are all these different rules and if you’re singleit’s harder."

But even once little Gemma Rose was finally, officially hers, she still wasn't able to stop worrying -- though what she worried about had changed. "When I first got her I would sleep with her on my chest,because when you adopt you’re very concerned about bonding. You’re not supposed to have comforters or anything around, obviously,because they could suffocate. So every night I would have these nightmares that she’sunder the comforter. I still -- seven months later -- have that. I’ll wake up andbe like, ‘Where’s Gemma? Where’s Gemma?’ … and she’s in her crib, safe andsound." Sounds like she's a great mom!